Trying to get a understanding can you me with the first two problems ? ? the function a(t) =7t represents the total amount of money in dollars carmen earns babysitting as function of time in hours. solve each function for the input given the output value. 1. a(t) = 14 2. a(t) = 35

Got it

A(t)=7t
so for a certain value of t, we get an output

1.
ok, so when t= some value, then A(t)=14
since A(t)=7t we do
7t=14, find t
divide both sides by 2
t=2
so it would be A(2)=14
t=2

2.
same thing
A(t)=7t
and A(t)=35
find t when 7t=35
divide both sides by 7
t=5

So what u want to do is find out how much it is per oz, so Mini is $.10 per oz, family is $.08 per oz, and economy is $.09 per oz

Family 28oz is the best buy